245874164449 has 9 divisors (see below), whose sum is σ = 257041058673. Its totient is φ = 235173074532.

The previous prime is 245874164441. The next prime is 245874164453. The reversal of 245874164449 is 944461478542.

The square root of 245874164449 is 495857.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 245874164449 - 2³ = 245874164441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245874164393 and 245874164402.

It is not an unprimeable number, because it can be changed into a prime (245874164441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11393932 + ... + 11415490.

Almost surely, 2^245874164449 is an apocalyptic number.

245874164449 is the 495857-th square number.

245874164449 is the 247929-th centered octagonal number.

It is an amenable number.

245874164449 is a deficient number, since it is larger than the sum of its proper divisors (11166894224).

245874164449 is an frugal number, since it uses more digits than its factorization.

245874164449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43164 (or 21582 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 58.

The spelling of 245874164449 in words is "two hundred forty-five billion, eight hundred seventy-four million, one hundred sixty-four thousand, four hundred forty-nine".